>- Have you thought about the "tech" side of it? It sounds like you would
>like to have a Squeak-side abstraction layer and then have different
>"backends" with one being Morphic itself and the others typically being
>native kits. Read about the philosophy of SWT? (kinda interesting IMHO)

Yes - SWT (which is used by Java for building the Eclipse/WSAD UI) is 
a nice way to integrate native widgets.

See how it works at: 
http://www.eclipse.org/articles/Article-SWT-Design-1/SWT-Design-1.html
http://astares.smallscript.org/technology/technology/eclbehinswt.html

There are already SWT libraries for major platforms available - maybe
anything that is needed are calls from Squeak's FFI.

On the other hand using native widgets makes it much harder to switch
to new platforms ...

Bye
Torsten